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Rifles, Reloading, Optics, Equipment
Reloading
Long-term springback on sized necks?
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<blockquote data-quote="ken snyder" data-source="post: 500268" data-attributes="member: 26019"><p>I've noticed that pin gauging soft materials is not very repeatable, After the first time it is performed on brass. The gauge itself can enlarge diameters ( from slight interference to a slip fit), particularly when done by hand. Temperature: cold brass, warm pin and then the other way around can account for perhaps as much as .0005 in feel. other than slight oxidization as a friction modifier you still have really close to the same hole that you measured originally. The big culprit is doing it twice with a long interval between measurements and doing it by feel!</p></blockquote><p></p>
[QUOTE="ken snyder, post: 500268, member: 26019"] I've noticed that pin gauging soft materials is not very repeatable, After the first time it is performed on brass. The gauge itself can enlarge diameters ( from slight interference to a slip fit), particularly when done by hand. Temperature: cold brass, warm pin and then the other way around can account for perhaps as much as .0005 in feel. other than slight oxidization as a friction modifier you still have really close to the same hole that you measured originally. The big culprit is doing it twice with a long interval between measurements and doing it by feel! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Long-term springback on sized necks?
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